Update web/core/views.py

web/core/views.py

@@ -418,6 +418,18 @@ def import_wizard(request):
     else:
         form = ImportForm()
 
+        # make sure we have the ordered column list the preview expects
+    expected = [
+    "Subject","Illustration","Application","Scripture","Source",
+    "Talk Title","Talk Number","Code","Date","Date Edited",
+]
+    report.setdefault("columns", expected)
+
+# if report.preview is a list of dicts, convert to list-of-lists
+    if report.get("preview") and isinstance(report["preview"][0], dict):
+        report["preview"] = [[row.get(c, "") for c in report["columns"]]
+                          for row in report["preview"]]
+
     return render(request, "import_wizard.html", {"form": form})
 
 @login_required